Fersmanite
Sokolova E V, Hawthorne F C, Khomyakov A P
The Canadian Mineralogist 40 (2002) 1421-1428
The crystal chemistry of fersmanite, Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3
_database_code_amcsd 0005791
CELL PARAMETERS: 10.1830 10.1830 20.3960 90.000 97.190 90.000
SPACE GROUP: C2/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 2098.302
Density (g/cm3): 3.387
MAX. ABS. INTENSITY / VOLUME**2: 10.57013314
RIR: 1.016
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
8.74 100.00 10.1178 0 0 2 2
12.34 4.82 7.1720 1 1 0 4
12.72 21.83 6.9574 -1 1 1 4
13.46 9.78 6.5784 1 1 1 4
15.77 15.87 5.6202 1 1 2 4
17.23 10.55 5.1471 -1 1 3 4
17.53 10.34 5.0589 0 0 4 2
20.57 10.93 4.3186 -1 1 4 4
22.39 10.58 3.9711 1 1 4 4
24.83 6.97 3.5862 -2 2 1 4
24.83 7.14 3.5860 2 2 0 4
25.61 4.68 3.4787 -2 2 2 4
25.61 4.51 3.4783 2 2 1 4
26.23 2.91 3.3978 1 1 5 4
27.10 18.54 3.2898 -2 2 3 4
27.11 18.81 3.2892 2 2 2 4
27.72 3.73 3.2176 -3 1 1 4
27.73 3.82 3.2176 1 3 0 4
28.22 1.88 3.1621 -1 1 6 4
28.25 8.30 3.1585 -3 1 2 4
28.26 8.38 3.1582 1 3 1 4
28.78 6.07 3.1022 -1 3 2 4
28.78 6.16 3.1018 3 1 1 4
29.22 94.57 3.0565 -2 2 4 4
29.22 94.56 3.0558 2 2 3 4
30.30 3.44 2.9502 -1 3 3 4
30.30 3.39 2.9497 3 1 2 4
31.27 3.38 2.8606 -3 1 4 4
31.27 3.27 2.8601 1 3 3 4
31.84 73.42 2.8108 -2 2 5 4
31.84 74.43 2.8101 2 2 4 4
32.34 6.92 2.7678 -1 1 7 4
34.47 7.43 2.6022 1 1 7 4
34.86 12.53 2.5735 -2 2 6 4
34.87 12.08 2.5729 2 2 5 4
35.49 10.46 2.5295 0 0 8 2
35.54 10.33 2.5259 -4 0 2 2
35.54 20.48 2.5258 0 4 1 4
35.54 10.17 2.5257 4 0 0 2
36.61 2.56 2.4548 -1 1 8 4
38.21 1.83 2.3552 -2 2 7 4
38.22 1.82 2.3546 2 2 6 4
39.46 1.55 2.2835 -3 1 7 4
39.47 1.57 2.2830 1 3 6 4
39.49 1.35 2.2817 3 3 2 4
40.27 1.95 2.2397 -3 3 4 4
41.14 2.20 2.1943 -1 3 7 4
41.15 2.23 2.1938 3 1 6 4
41.17 3.15 2.1928 3 3 3 4
41.83 1.12 2.1593 -2 2 8 4
41.84 1.17 2.1588 2 2 7 4
41.92 1.24 2.1552 -4 0 6 2
41.92 2.49 2.1549 0 4 5 4
41.93 1.24 2.1545 4 0 4 2
42.16 1.91 2.1435 -3 3 5 4
42.87 2.44 2.1095 -3 1 8 4
42.88 2.43 2.1090 1 3 7 4
44.46 3.71 2.0377 -3 3 6 4
44.68 2.23 2.0282 -1 3 8 4
44.69 2.23 2.0278 3 1 7 4
44.79 5.62 2.0236 0 0 10 2
45.76 5.11 1.9827 3 3 5 4
46.54 1.56 1.9515 -3 1 9 4
46.55 1.56 1.9511 1 3 8 4
47.59 13.17 1.9109 -4 0 8 2
47.60 26.36 1.9105 0 4 7 4
47.60 13.16 1.9102 4 0 6 2
48.60 1.42 1.8734 3 3 6 4
50.12 4.02 1.8201 -3 3 8 4
50.46 1.04 1.8085 -5 1 6 4
50.47 1.08 1.8083 -1 5 5 4
50.71 64.82 1.8001 -4 4 1 4
51.57 1.11 1.7724 -4 4 3 4
51.57 1.05 1.7722 4 4 1 4
51.74 1.35 1.7668 3 3 7 4
52.44 1.26 1.7450 1 1 11 4
54.44 14.05 1.6855 -4 0 10 2
54.45 28.10 1.6852 0 4 9 4
54.46 14.04 1.6849 4 0 8 2
54.81 1.91 1.6750 -1 1 12 4
55.16 1.01 1.6652 3 3 8 4
56.64 1.37 1.6252 -1 3 11 4
56.65 1.34 1.6249 3 1 10 4
56.68 1.33 1.6241 1 5 7 4
56.69 1.33 1.6239 5 1 6 4
57.22 1.68 1.6100 1 1 12 4
57.26 1.01 1.6088 -6 2 2 4
57.27 1.00 1.6088 2 6 0 4
57.27 1.01 1.6088 -6 2 1 4
58.15 1.96 1.5865 -5 1 9 4
58.15 1.97 1.5863 -1 5 8 4
58.37 3.05 1.5811 -2 2 12 4
58.38 3.04 1.5807 2 2 11 4
58.44 1.53 1.5792 -6 2 4 4
58.44 1.55 1.5792 -2 6 3 4
58.44 1.50 1.5791 2 6 2 4
58.45 1.52 1.5790 6 2 1 4
58.79 1.29 1.5706 -3 1 12 4
58.81 1.29 1.5703 1 3 11 4
59.60 7.79 1.5512 -6 2 5 4
59.61 7.75 1.5511 -2 6 4 4
59.61 7.95 1.5510 2 6 3 4
59.61 7.88 1.5509 6 2 2 4
60.74 1.18 1.5249 -3 3 11 4
61.13 8.18 1.5160 -6 2 6 4
61.14 8.23 1.5159 -2 6 5 4
61.14 8.01 1.5158 2 6 4 4
61.15 8.10 1.5157 6 2 3 4
62.76 1.10 1.4806 -3 5 8 4
62.77 1.11 1.4803 5 3 6 4
62.95 6.13 1.4766 -2 2 13 4
62.96 6.19 1.4763 2 2 12 4
63.01 1.71 1.4752 -6 2 7 4
63.02 1.65 1.4751 -2 6 6 4
63.02 1.73 1.4750 2 6 5 4
63.03 1.67 1.4748 6 2 4 4
63.41 7.50 1.4668 -4 4 9 4
63.43 7.58 1.4665 4 4 7 4
67.71 5.00 1.3839 -2 2 14 4
67.72 4.93 1.3837 2 2 13 4
69.94 2.23 1.3451 -4 4 11 4
69.96 2.16 1.3448 4 4 9 4
74.55 6.37 1.2729 0 8 0 2
74.55 6.36 1.2729 -8 0 2 2
75.11 3.45 1.2647 0 0 16 2
80.92 1.16 1.1880 -6 2 13 4
80.93 1.17 1.1879 -2 6 12 4
80.94 1.16 1.1878 2 6 11 4
80.95 1.17 1.1877 6 2 10 4
82.00 1.85 1.1751 -6 6 5 4
82.01 1.81 1.1750 6 6 2 4
83.34 2.68 1.1596 -6 6 6 4
83.35 2.75 1.1594 6 6 3 4
84.94 1.96 1.1418 -6 2 14 4
84.95 1.99 1.1416 -2 6 13 4
84.96 1.95 1.1415 2 6 12 4
84.97 1.98 1.1414 6 2 11 4
85.36 1.44 1.1372 -8 0 10 2
85.38 2.90 1.1370 0 8 8 4
85.39 1.47 1.1369 8 0 6 2
85.41 2.25 1.1367 -8 4 3 4
85.41 2.22 1.1367 -4 8 2 4
85.41 2.19 1.1367 4 8 0 4
85.41 2.18 1.1367 -8 4 1 4
89.27 1.55 1.0973 -6 2 15 4
89.28 1.52 1.0972 -2 6 14 4
89.29 1.60 1.0970 2 6 13 4
89.31 1.58 1.0969 6 2 12 4
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.